28LV64A Просмотр технического описания (PDF) - Microchip Technology
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28LV64A Datasheet PDF : 8 Pages
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28LV64A
1.0 ELECTRICAL
CHARACTERISTICS
MAXIMUM RATINGS*
VCC and input voltages w.r.t. VSS ...... -0.6V to + 6.25V
Voltage on OE w.r.t. VSS...................... -0.6V to +13.5V
Voltage on A9 w.r.t. VSS....................... -0.6V to +13.5V
Output Voltage w.r.t. VSS ............... -0.6V to VCC+0.6V
Storage temperature .......................... -65˚C to +150˚C
Ambient temp. with power applied .....-55°C to +125°C
*Notice: Stresses above those listed under “Maximum Ratings” may
cause permanent damage to the device. This is a stress rating only
and functional operation of the device at those or any other conditions
above those indicated in the operation listings of this specification is
not implied. Exposure to maximum rating conditions for extended
periods may affect device reliability.
TABLE 1-1: PIN FUCTION TABLE
Name
A0 - A12
CE
OE
WE
I/O0 - I/O7
RDY/Busy
VCC
VSS
NC
NU
Function
Address Inputs
Chip Enable
Output Enable
Write Enable
Data Inputs/Outputs
Ready/Busy
+ Power Supply
Ground
No Connect; No Internal Connection
Not Used; No External Connection is
Allowed
TABLE 1-2: READ/WRITE OPERATION DC CHARACTERISTICS
VCC = 2.7 to 3.6V
Commercial (C): Tamb = 0°C to 70°C
Industrial (I): Tamb = -40°C to 85°C
Parameter
Status
Symbol Min Max Units
Conditions
Input Voltages
Logic “1”
VIH
2.0
V
Logic “2”
VIL
0.6 V
Input Leakage
—
ILI
—
5
µA VIN = 0V to VCC+1
Input Capacitance
—
CIN
—
6
pF Vin = 0V; Tamb = 25°C;
f = 1 MHz (Note 1)
Output Voltages
Logic “1”
VOH
2.0
V IOH = -100µA
Logic “0”
VOL
0.3 V IOL = 1.0 mA
I0L = 2.0 mA for RDY/Busy
Output Leakage
—
ILO
—
5
µA VOUT = 0V to VCC+0.1V
Output Capacitance
—
COUT
— 12 pF VOUT = 0V; Tamb = 25°C;
f = 1 MHz (Note 1)
Power Supply Current, Activity
TTL input
ICC
—
8 mA f = 5 MHz (Note 2)
IO = OmA
VCC = 3.3
CE = VIL
Power Supply Current, Standby
TTL input ICC(S)TTL —
TTL input ICC(S)TTL
CMOS input ICC(S)CMOS
2 mA CE = VIH (0°C to 70°C°)
3 mA CE = VIH (-40°C to 85°C°)
100 µA CE = VCC -3.0 to VCC+1
Note 1: Not 100% tested.
2: AC power supply current above 5 MHz: 2 mA/Mhz.
DS21113B-page 2
Preliminary
© 1996 Microchip Technology Inc.
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